4643636564 has 96 divisors (see below), whose sum is σ = 10108707840. Its totient is φ = 1821076992.

The previous prime is 4643636561. The next prime is 4643636573. The reversal of 4643636564 is 4656363464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4643636561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6283307 + ... + 6284045.

It is an arithmetic number, because the mean of its divisors is an integer number (105299040).

Almost surely, 2^4643636564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4643636564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5054353920).

4643636564 is an abundant number, since it is smaller than the sum of its proper divisors (5465071276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4643636564 is a wasteful number, since it uses less digits than its factorization.

4643636564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1115 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 47.

The square root of 4643636564 is about 68144.2335344672. The cubic root of 4643636564 is about 1668.3458065166.

The spelling of 4643636564 in words is "four billion, six hundred forty-three million, six hundred thirty-six thousand, five hundred sixty-four".